Protagonist a middle-aged man who cannot manage free time. Flirting of the son and his wife who is living together by a new marriage to be an eyesore, a strong desire was held in bride Ryouko's too sensual bodie.

A certain night, make the son in living to sleep with the sleeping medicine, son's pretense is done and it enters the bedroom. It is pretended that it plays Ryouko is blindfold and gropes the body, however though it is noticed in the place in which it inserted it, Ryouko has already felt it, it is forcibly made to cum by the Protagonist.

Afterwards Protagonist it approaches Ryouko variously when the son doesn't exist... At first Ryouko who hates various play repeatedly, it finally gropes between father-in-law's groins near a husband and it pesters for child making, it turns into the lewd pervert woman...